<!doctype>
<html>
<head>

<meta charset="utf-8"/>
<script>
const a = {
	a:1,
	b:2,
	c:3
}

console.log(Object.entries(a));

for (let [key, value] of Object.entries(a)) {
  console.log(`${key}: ${value}`);
}


console.log("Object.keys",Object.keys(a));
</script>
</head>
<body>


</body>
</html>